Lightweight and conductive carbon black/chlorinated poly(propylene carbonate) foams with a remarkable negative temperature coefficient effect of resistance for temperature sensor applications

doi:10.1039/c8tc02123f

CORC > 化学研究所 > 中国科学院化学研究所

	Lightweight and conductive carbon black/chlorinated poly(propylene carbonate) foams with a remarkable negative temperature coefficient effect of resistance for temperature sensor applications
	Cui, Xihua 1,2; Chen, Jianwen 1,2; Zhu, Yutian 1; Jiang, Wei 1
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2018-09-21
卷号	6 期号:35
ISSN号	2050-7526
DOI	10.1039/c8tc02123f
英文摘要	In the current study, we fabricated lightweight and biodegradable conductive carbon black/chlorinated poly(propylene carbonate) (CB/CPPC) foams with a well-defined closed-cell structure by the combination of facile melt blending and the subsequent chemical foaming process. It was found that the foaming treatment could significantly lower the electrical percolation threshold from 2.48 vol% (solid composites) to 0.138 vol%. More interestingly, it was noted that the CB/CPPC foams exhibited a nearly-linear negative temperature coefficient (NTC) effect of resistance with increasing temperature from 25 degrees C to 70 degrees C, which was attributed to the gas expansion-induced thinning of cell walls and thereby a decreased distance between adjacent CB particles. The NTC effect of the CB/CPPC foams was more sensitive than that of most of the previously reported NTC composites. Moreover, the crosslinked CB/CPPC foams have both high sensitivity and good reproducibility of the NTC effect, which could well detect the change of temperature as shown in the demonstration experiments. The range of temperature detected by the CB/CPPC foams is from room temperature to 70 degrees C, which is ideal for wearable electronics and versatile temperature sensors in medical, food, and environment monitoring. The current study provides a facile route for large-scale preparation and practical application of NTC materials.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000445219400007
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43073]
专题	中国科学院化学研究所
通讯作者	Zhu, Yutian; Jiang, Wei
作者单位	1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Jilin, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Cui, Xihua,Chen, Jianwen,Zhu, Yutian,et al. Lightweight and conductive carbon black/chlorinated poly(propylene carbonate) foams with a remarkable negative temperature coefficient effect of resistance for temperature sensor applications[J]. JOURNAL OF MATERIALS CHEMISTRY C,2018,6(35).
APA	Cui, Xihua,Chen, Jianwen,Zhu, Yutian,&Jiang, Wei.(2018).Lightweight and conductive carbon black/chlorinated poly(propylene carbonate) foams with a remarkable negative temperature coefficient effect of resistance for temperature sensor applications.JOURNAL OF MATERIALS CHEMISTRY C,6(35).
MLA	Cui, Xihua,et al."Lightweight and conductive carbon black/chlorinated poly(propylene carbonate) foams with a remarkable negative temperature coefficient effect of resistance for temperature sensor applications".JOURNAL OF MATERIALS CHEMISTRY C 6.35(2018).